/* ---------------------------------------------------------------------------
 * This software is in the public domain, furnished "as is", without technical
 * support, and with no warranty, express or implied, as to its usefulness for
 * any purpose.
 *
 * Token.h
 *
 * Author: Guillaume Boissé
 * -------------------------------------------------------------------------*/

#ifndef _JSP_TOKEN_H
#define _JSP_TOKEN_H

namespace jsp
{

#define TOKEN_LIST(T, K)                                        \
    /* End of source indicator */                               \
    T(EOS, "EOS", 0)                                            \
                                                                \
    /* Punctuators (ECMA-262, section 7.7, page 15). */         \
    T(LPAREN, "(", 0)                                           \
    T(RPAREN, ")", 0)                                           \
    T(LBRACK, "[", 0)                                           \
    T(RBRACK, "]", 0)                                           \
    T(LBRACE, "{", 0)                                           \
    T(RBRACE, "}", 0)                                           \
    T(COLON, ":", 0)                                            \
    T(SEMICOLON, ";", 0)                                        \
    T(PERIOD, ".", 0)                                           \
    T(CONDITIONAL, "?", 3)                                      \
    T(INC, "++", 0)                                             \
    T(DEC, "--", 0)                                             \
                                                                \
    /* Assignment operators. */                                 \
    T(ASSIGN, "=", 2)                                           \
    T(ASSIGN_BIT_OR, "|=", 2)                                   \
    T(ASSIGN_BIT_XOR, "^=", 2)                                  \
    T(ASSIGN_BIT_AND, "&=", 2)                                  \
    T(ASSIGN_SHL, "<<=", 2)                                     \
    T(ASSIGN_SAR, ">>=", 2)                                     \
    T(ASSIGN_SHR, ">>>=", 2)                                    \
    T(ASSIGN_ADD, "+=", 2)                                      \
    T(ASSIGN_SUB, "-=", 2)                                      \
    T(ASSIGN_MUL, "*=", 2)                                      \
    T(ASSIGN_DIV, "/=", 2)                                      \
    T(ASSIGN_MOD, "%=", 2)                                      \
                                                                \
    /* Binary operators sorted by precedence. */                \
    /* IsBinaryOp() relies on this block of enum values */      \
    /* being contiguous and sorted in the same order! */        \
    T(COMMA, ",", 1)                                            \
    T(OR, "||", 4)                                              \
    T(AND, "&&", 5)                                             \
    T(BIT_OR, "|", 6)                                           \
    T(BIT_XOR, "^", 7)                                          \
    T(BIT_AND, "&", 8)                                          \
    T(SHL, "<<", 11)                                            \
    T(SAR, ">>", 11)                                            \
    T(SHR, ">>>", 11)                                           \
    T(ROR, "rotate right", 11)   /* only used by Crankshaft */  \
    T(ADD, "+", 12)                                             \
    T(SUB, "-", 12)                                             \
    T(MUL, "*", 13)                                             \
    T(DIV, "/", 13)                                             \
    T(MOD, "%", 13)                                             \
                                                                \
    /* Compare operators sorted by precedence. */               \
    /* IsCompareOp() relies on this block of enum values */     \
    /* being contiguous and sorted in the same order! */        \
    T(EQ, "==", 9)                                              \
    T(NE, "!=", 9)                                              \
    T(EQ_STRICT, "===", 9)                                      \
    T(NE_STRICT, "!==", 9)                                      \
    T(LT, "<", 10)                                              \
    T(GT, ">", 10)                                              \
    T(LTE, "<=", 10)                                            \
    T(GTE, ">=", 10)                                            \
    K(INSTANCEOF, "instanceof", 10)                             \
    K(IN, "in", 10)                                             \
                                                                \
    /* Unary operators. */                                      \
    /* IsUnaryOp() relies on this block of enum values */       \
    /* being contiguous and sorted in the same order! */        \
    T(NOT, "!", 0)                                              \
    T(BIT_NOT, "~", 0)                                          \
    K(DELETE, "delete", 0)                                      \
    K(TYPEOF, "typeof", 0)                                      \
    K(VOID, "void", 0)                                          \
                                                                \
    /* Keywords (ECMA-262, section 7.5.2, page 13). */          \
    K(BREAK, "break", 0)                                        \
    K(CASE, "case", 0)                                          \
    K(CATCH, "catch", 0)                                        \
    K(CONTINUE, "continue", 0)                                  \
    K(DEBUGGER, "debugger", 0)                                  \
    K(DEFAULT, "default", 0)                                    \
    /* DELETE */                                                \
    K(DO, "do", 0)                                              \
    K(ELSE, "else", 0)                                          \
    K(FINALLY, "finally", 0)                                    \
    K(FOR, "for", 0)                                            \
    K(FUNCTION, "function", 0)                                  \
    K(IF, "if", 0)                                              \
    /* IN */                                                    \
    /* INSTANCEOF */                                            \
    K(NEW, "new", 0)                                            \
    K(RETURN, "return", 0)                                      \
    K(SWITCH, "switch", 0)                                      \
    K(THIS, "this", 0)                                          \
    K(THROW, "throw", 0)                                        \
    K(TRY, "try", 0)                                            \
    /* TYPEOF */                                                \
    K(VAR, "var", 0)                                            \
    /* VOID */                                                  \
    K(WHILE, "while", 0)                                        \
    K(WITH, "with", 0)                                          \
                                                                \
    /* Literals (ECMA-262, section 7.8, page 16). */            \
    K(NULL_LITERAL, "null", 0)                                  \
    K(TRUE_LITERAL, "true", 0)                                  \
    K(FALSE_LITERAL, "false", 0)                                \
    T(NUMBER, NULL, 0)                                          \
    T(STRING, NULL, 0)                                          \
                                                                \
    /* Identifiers (not keywords or future reserved words). */  \
    T(IDENTIFIER, NULL, 0)                                      \
                                                                \
    /* Future reserved words (ECMA-262, section 7.6.1.2). */    \
    T(FUTURE_RESERVED_WORD, NULL, 0)                            \
    T(FUTURE_STRICT_RESERVED_WORD, NULL, 0)                     \
    K(CONST, "const", 0)                                        \
    K(EXPORT, "export", 0)                                      \
    K(IMPORT, "import", 0)                                      \
    K(LET, "let", 0)                                            \
    K(YIELD, "yield", 0)                                        \
                                                                \
    /* Illegal token - not able to scan. */                     \
    T(ILLEGAL, "ILLEGAL", 0)                                    \
                                                                \
    /* Scanner-internal use only. */                            \
    T(WHITESPACE, NULL, 0)

class Token
{
public:
#define T(name, string, precedence) name,
    enum Value
    {
        TOKEN_LIST(T, T)
        NUM_TOKENS
    };
#undef T
};

} // namespace jsp

#endif // _JSP_TOKEN_H
